Road Race Build 1G Mitsubishi Eclipse GS Autocross/time attack build

[Joefis]

Hi everyone,
I'm late to getting a build post on here, so here's what I have so far and I'll keep updating. This is an inherited, forever car for me, so I'm purposely building this car instead of another with AWD or a better chassis, or an original turbo model.

1993 Mitsubishi Eclipse GS fwd 2.0L model originally - approx 145k miles on the chassis

-swapped on a '91 large port turbo cylinder head, intake manifold, and cam (still hi comp 9:1 NT pistons for quicker spool
-cx racing 16g turbo and tubular manifold
-3" O2 housing and downpipe, fully wrapped
-ebay 550cc injectors, walbro 255 pump
-swapped in turbo ECM and added eBay knock sensor
-Maf translator w GM 3" maf
-all 2.25" ic piping and larger front mount intercooler
-74mm throttle body and port matched manifold inlet
- a/c, factory p/s, emissions items all gone
- battery relocated to hatch and Volvo electric p/s pump mounted in that space on the firewall
- currently down to 2526 lbs in race trim
- subframe removed and reinforced along with polyurethane bushings in every front and relocation that they were still available
- upgraded front and rear sway bars
- 800/400 springs on tokicos (proper adjustable coilovers coming soon)
- outlander 2 piston front brake upgrade
- 18x12 fronts with 315 Hoosiers, 17x8s out back with 225s
- large front splitter and under tray
- homemade carbon fiber hood with louvers and latch removal
- fully shrouded front bumper to intercooler/ radiator
- larger aluminum radiator
- AWD Intermediate shaft with equal length CVs
- race seats and harnesses
- momo 320mm flat bottom wheel

And a bunch of stuff. I'm forgetting over 20 plus years of ownership, but I'll keep updating

 

[Joefis]

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[Joefis]

More pics

 

[Spleen8urLSX]

I like where this is headed! If I may give advice based on experience, with an safc (I know you’re using a maf translator but same principle) and evo 8 560’s at 22psi on a 16g with the 9:1 non turbo pistons I couldn’t avoid knock with straight 93 octane pump gas, I had to mix a gallon of 110 octane race gas to every 4 gallons of 93 octane and I was good. Also hold on to the head and intake you took off, aside from the cams 1g turbo and nt heads are identical as the intake manifold is too aside from the pvc nipple being pressed in on the nt one and no boost reference source (can be easily added). Also for your intended use I would ditch that exhaust manifold, the crappy thin material the Chinese manufacturer used will increase engine bay temps and they’re prone to cracking. A ported stock 2g exhaust manifold will not only be way less likely to fail, but will flow better and give you the option to use the factory heat shield.

 

[Joefis]

I like where this is headed! If I may give advice based on experience, with an safc (I know you’re using a maf translator but same principle) and evo 8 560’s at 22psi on a 16g with the 9:1 non turbo pistons I couldn’t avoid knock with straight 93 octane pump gas, I had to mix a gallon of 110 octane race gas to every 4 gallons of 93 octane and I was good. Also hold on to the head and intake you took off, aside from the cams 1g turbo and nt heads are identical as the intake manifold is too aside from the pvc nipple being pressed in on the nt one and no boost reference source (can be easily added). Also for your intended use I would ditch that exhaust manifold, the crappy thin material the Chinese manufacturer used will increase engine bay temps and they’re prone to cracking. A ported stock 2g exhaust manifold will not only be way less likely to fail, but will flow better and give you the option to use the factory heat shield.

Hi, thanks, appreciate the input! Agree on detonation avoidance with the weaker non-turbo pistons, so I run straight 100 octane at races.
Unfortunately the original non-turbo head was cracked, and I did that swap over 10 years ago, so those parts are long gone.
Also agree on that exhaust manifold, it just came in a super cheap kit and my stock 1G had been cracked and rewelded already. I'm thinking of getting the FP manifold and wrapping all of it when I reinstall. I'll post as I'm going. Thanks again!